AU102001B2
(en )
1937-09-23
Improvements relating to carbon sets for duplicating typework on continuous record sheets
AU15037A
(en )
1937-09-23
Improvements relating to carbon sets for duplicating typework on continuous record sheets
CA369469A
(en )
1937-10-26
Typewriter mechanism and carbon sheet
CA362836A
(en )
1936-12-22
Typewriter duplicating device
CA355315A
(en )
1936-01-14
Jacket for carbon paper
AU1334233A
(en )
1934-06-28
Carbon paper reproducing sheet
AU126061B2
(en )
1947-11-27
Improvements in or relating to typewriter attachments for making copies without the use of carbon paper
CA364878A
(en )
1937-03-16
Low carbon steel
CA363113A
(en )
1937-01-05
Typewriter platen
CA366807A
(en )
1937-06-15
Duplicating machine
CA366810A
(en )
1937-06-15
Duplicating machine
CA370829A
(en )
1937-12-28
Duplicating machine
CA370830A
(en )
1937-12-28
Duplicating machine
CA370636A
(en )
1937-12-21
Phonograph record duplicating method
AU166340A
(en )
1947-11-27
Improvements in or relating to typewriter attachments for making copies without the use of carbon paper
AU104962B2
(en )
Improvements inthe manufacture of carbon paper
AU105122B2
(en )
1938-09-22
Improved stationery usable as receipts and for bookkeeping purposes
AU103515B2
(en )
1938-03-31
Improvements relating to sound reproducing apparatus
CA365099A
(en )
1937-03-30
Duplicating machine ink distributing means
CA365545A
(en )
1937-04-20
Printing press
CA367855A
(en )
1937-08-03
Printing press
CA348834A
(en )
1935-03-12
Duplicating device for typewriters
CA365446A
(en )
1937-04-20
Manifolding pack
CA363769A
(en )
1937-01-26
Printing plate
CA382180A
(en )
1939-06-20
Duplicating ink